DE10039022A1 - Connecting rods for an internal combustion engine, especially a V-engine - Google Patents

Connecting rods for an internal combustion engine, especially a V-engine

Info

Publication number
DE10039022A1
DE10039022A1 DE10039022A DE10039022A DE10039022A1 DE 10039022 A1 DE10039022 A1 DE 10039022A1 DE 10039022 A DE10039022 A DE 10039022A DE 10039022 A DE10039022 A DE 10039022A DE 10039022 A1 DE10039022 A1 DE 10039022A1
Authority
DE
Germany
Prior art keywords
bearing
connecting rod
force effective
gas force
plane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE10039022A
Other languages
German (de)
Inventor
Rudolf Kirsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE10039022A priority Critical patent/DE10039022A1/en
Priority to EP01115989A priority patent/EP1179663B1/en
Priority to DE50109736T priority patent/DE50109736D1/en
Priority to ES01115989T priority patent/ES2260124T3/en
Priority to AT01115989T priority patent/ATE325945T1/en
Publication of DE10039022A1 publication Critical patent/DE10039022A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
    • F16C7/02—Constructions of connecting-rods with constant length
    • F16C7/023—Constructions of connecting-rods with constant length for piston engines, pumps or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/04—Connecting-rod bearings; Attachments thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J7/00—Piston-rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/22—Internal combustion engines

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The patent relates to connecting rods with which the plane (GE) of the thrust exerted through the rod is off-set relative to the plane (SE) of the clamping force exerted by the bolts securing the big end halves. In a peripheral slot (6) in the big end bearing (4) an offset bearing surface (5) is provided so that it is aligned centrally about the plane of thrust.

Description

Die Erfindung bezieht sich nach dem Oberbegriff des Patentanspruches 1 auf ein Pleuel für eine Brennkraftmaschine, insbesondere V-Motor, bei dem zu einer ein Pleuelauge mittig durchsetzenden Gaskraft-Wirkebene ein Pleuel-Hauptlager aussermittig gestaltet ist, wobei das zweiteilig ausgebildete, verschraubbare Hauptlager mit einem Gleitlager ausgerüstet ist, das eine zur Gaskraft-Wirkebene im Wesentlichen symmetrisch ausgebildete Gleitlager-Lauffläche aufweist.According to the preamble of claim 1, the invention relates to Connecting rod for an internal combustion engine, especially a V-engine, in which one A connecting rod main bearing in the middle of the connecting rod eye is designed eccentrically, the two-part, screwable Main bearing is equipped with a plain bearing, one to the gas force effective level in the Has essentially symmetrical slide bearing tread.

Ein derartiges Pleuel ist beispielsweise aus der DE 40 25 927 A1 bekannt, wobei die aussermittige Gestaltung des Pleuel-Hauptlagers sich durch einen einseitigen Materialabtrag an der Stirnseite des Hauptlagers ergibt. Weiter ist es bei einem derartigen, zweiteilig ausgebildeten und verschraubbaren Hauptlager üblich, die Verschraubung in die Gaskraft-Wirkebene des Pleuels zu legen, so dass mit der Gaskraft-Wirkebene die Schraubenkraft-Wirkebene zusammenfällt. Ferner ist es auch üblich, die Schmierölzufuhr über den Hubzapfen einer Kurbelwelle in der Gaskraft-Wirkebene vorzusehen.Such a connecting rod is known for example from DE 40 25 927 A1, the eccentric design of the connecting rod main bearing by a one-sided Material removal on the front side of the main bearing results. It is further with one such, two-part screw-type main bearing common, the Place the screw connection in the gas force effective plane of the connecting rod, so that with the Gas force effective level The screw force effective level coincides. Furthermore, it is also common, the lubricating oil supply via the crank pin of a crankshaft in the To provide gas force effective level.

Der Erfindung liegt die Aufgabe zu Grunde, bei einem gattungsgemäßen Pleuel mit einem in seiner Breite voll ausgebildeten Pleuel-Hauptlager eine der aussermittig wirkenden Gaskraft-Wirkebene angepasste Gleitlager-Gestaltung aufzuzeigen. The invention is based on the object in a connecting rod of the generic type one of the eccentric connecting rod main bearings to show the plain bearing design adapted to the gas force effective level.  

Diese Aufgabe ist mit dem Patentanspruch 1 dadurch gelöst, dass ein mit seiner bezogen auf die Lagerbreite mittigen Schraubenkraft-Wirkebene relativ zur Gaskraft- Wirkebene aussermittig versetzt angeordnetes Pleuel-Hauptlager mit einem Gleitlager ausgerüstet ist, das eine zur Gaskraft-Wirkebene symmetrisch ausgebildete Gleitlager-Lauffläche aufweist.This object is achieved with claim 1 in that one with its related to the bearing width central screw force effective plane relative to the gas force Effective plane of the connecting rod main bearing with an offset Plain bearing is equipped, the one symmetrical to the gas force effective plane trained slide bearing tread.

Mit der Erfindung ist der Vorteil erreicht, dass die Mitte der hydraulisch wirksamen Lagerbreite und die Mitte des Pleuelauges bzw. zur Gaskraft-Wirkebene symmetrisch angeordnet bleibt und somit ein Kippen des Pleuels vermieden ist.The advantage of the invention is that the center of the hydraulically effective Bearing width and the center of the connecting rod eye or to the gas force effective level remains symmetrically arranged, thus preventing the connecting rod from tipping.

Eine vorteilhafte Ausgestaltung der Erfindung ist weiter dadurch erreicht, dass das Gleitlager sich über die Lagerbreite des Pleuel-Hauptlagers erstreckt, wobei die symmetrisch wirksame Gleitlager-Lauffläche mittels einer umfänglichen Ausnehmung in einem von der Gaskraft-Wirkebene entfernten Endbereich des Gleitlagers erzielt ist.An advantageous embodiment of the invention is further achieved in that the Plain bearing extends over the bearing width of the connecting rod main bearing, the symmetrically effective plain bearing tread using a comprehensive Recess in an end region of the gas force effective plane Plain bearing is achieved.

Mit dieser Ausgestaltung ist ein Gleitlager mit einer in der Herstellung einfachen gestuften Lagerbohrung erzielt.With this configuration, a plain bearing is simple to manufacture stepped bearing bore achieved.

Besonders vorteilhaft wirkt sich die Erfindung bei Verwendung eines Gleitlagers als Mehrschichtlager mit einem Stahlrücken aus, der sich über die Lagerbreite des Pleuel-Hauptlagers erstreckt, der erfindungsgemäß über die Schraubenkraft- Wirkebene symmetrisch gepresst ist. Mit dieser Ausgestaltung ist in Verbindung mit dem zur Gaskraft-Wirkebene symmetrischen Schmiermittel-Druckverlauf in vorteilhafter Weise bei gewichtserleichterten, insbesondere biegeweichem Pleuel eine einseitig trichterförmige Aufweitung des Pleuel-Hauptlagers sicher vermieden.The invention has a particularly advantageous effect when using a plain bearing Multi-layer bearings with a steel back that extends over the width of the bearing Connecting rod main bearing, which according to the invention via the screw force Effective plane is pressed symmetrically. This configuration is in conjunction with the lubricant pressure curve symmetrical to the gas force effective level in advantageous in the case of weight-reduced, in particular flexible connecting rods a funnel-shaped widening of the connecting rod main bearing is reliably avoided.

Die Erfindung ist an Hand eines in der Zeichnung dargestellten Ausführungsbeispiels beschrieben. The invention is based on one shown in the drawing Described embodiment.  

Ein Pleuel (1) für eine nicht gezeigte Brennkraftmaschine, insbesondere V-Motor, umfasst ein Pleuel-Auge (2) mit einer dieses mittig durchsetzenden Gaskraft- Wirkebene GE, zu dem ein - unmaßstäblich gezeichnetes - Pleuel-Hauptlager (3) aussermittig gestaltet ist. Das in bekannter Weise zweiteilig ausgebildete und verschraubbare Pleuel-Hauptlager (3) ist mit einem Gleitlager (4) ausgerüstet.A connecting rod ( 1 ) for an internal combustion engine (not shown), in particular a V-type engine, comprises a connecting rod eye ( 2 ) with a gas force effective plane G E penetrating it in the center, for which a connecting rod main bearing ( 3 ), which is not drawn to scale, is eccentrically designed is. The connecting rod main bearing ( 3 ), which is designed and screwable in two parts, is equipped with a sliding bearing ( 4 ).

Für ein vorzugsweise gewichtoptimiertes, biegeweiches Pleuel (1) mit in seiner Lagerbreite BL voll ausgebildetem Pleuel-Hauptlager (3) ist eine der aussermittig wirkenden Gaskraft-Wirkebene GE angepasste Gleitlager-Gestaltung aufzuzeigen mit dem Ziel, Kippmomente und damit verbundene Deformationen des Hauptlagers (3) zu vermeiden.For a preferably weight-optimized, flexible connecting rod ( 1 ) with a connecting rod main bearing ( 3 ) with full bearing width B L , a slide bearing design adapted to the eccentrically acting gas force effective plane G E is to be shown with the aim of tilting moments and the associated deformations of the main bearing ( 3 ) to avoid.

Erfindungsgemäß ist ein mit seiner bezogen auf die Lagerbreite BL mittigen Schraubenkraft-Wirkebene SE relativ zur Gaskraft-Wirkebene GE aussermittig versetzt angeordnetes Pleuel-Hauptlager (3) mit einem Gleitlager (4) ausgerüstet ist, das eine zur Gaskraft-Wirkebene GE symmetrisch ausgebildete Gleitlager-Lauffläche (5) aufweist.According to the invention a center with its relation to the bearing width B L screw force operative plane S E relative to the gas force operative plane G E offset eccentrically disposed connecting-rod bearing (3) is equipped with a sliding bearing (4) having a to the gas-force operative plane G E Has symmetrically designed slide bearing tread ( 5 ).

Diese Gleitlager-Lauffläche (5) ist erfindungsgemäß dadurch erreicht, dass die symmetrisch wirksame Gleitlager-Lauffläche (5) mittels einer umfänglichen Ausnehmung (6) in einem von der Gaskraft-Wirkebene GE entfernten Endbereich (7) des Gleitlagers (4) angeordnet ist.This slide bearing tread ( 5 ) is achieved according to the invention in that the symmetrically effective slide bearing tread ( 5 ) is arranged by means of a circumferential recess ( 6 ) in an end region ( 7 ) of the slide bearing ( 4 ) remote from the gas force effective plane G E ,

Die Erfindung kommt besonders vorteilhaft bei einem Gleitlager (4) zum Tragen, das aus einem Mehrschichtlager mit einem Stahlrücken (8) ausgebildet ist, der sich über die Lagerbreite BL des Pleuel-Hauptlagers (3) erstreckt. Mit dieser Anordnung ergibt sich bei zur Lagerbreite BL mittig angeordneter, nicht gezeigter Verschraubung zu deren Schraubenkraft-Wirkebene SE eine symmetrische Pressung des Gleitlagers (4) gemäß dem durch strichlierte Linien angedeuteten Spannungsverlauf gemäß der Fläche (9). Der zur Gaskraft-Wirkebene GE symmetrische Schmiermittel- Druckverlauf ist durch die Fläche (10) unter der durchgezogenen Kurve versinnbildlicht. The invention is particularly advantageous in the case of a plain bearing ( 4 ) which is formed from a multilayer bearing with a steel back ( 8 ) which extends over the bearing width B L of the connecting rod main bearing ( 3 ). This arrangement results in a symmetrical compression of the plain bearing ( 4 ) according to the stress curve according to the surface ( 9 ) indicated by dashed lines in the case of a screw connection, not shown, which is arranged in the center of the bearing width B L and has its screw force effective plane S E. The lubricant pressure curve which is symmetrical to the gas force effective plane G E is symbolized by the area ( 10 ) below the solid curve.

Mit dieser erfindungsgemäßen Trennung der Funktionen der hydraulischen Lagerung des Pleuels (1) einerseits und eines Festsitzes des Gleitlagers (4) im Pleuel-Hauptlager (3) durch radiale Verpressung andererseits behält das Gleitlager (4) in vorteilhafter Weise seine zylindrische Form bei und eine aus dem asymmetrischen Kraftfluss in der Gaskraft-Wirkebene GE mögliche kegelförmige Verformung des Gleitlagers (4) ist sicher vermieden.With this separation according to the invention of the functions of the hydraulic connection of the connecting rod ( 1 ) on the one hand and a tight fit of the sliding bearing ( 4 ) in the connecting rod main bearing ( 3 ) by radial pressing on the other hand, the sliding bearing ( 4 ) advantageously maintains its cylindrical shape and one out the asymmetrical flow of force in the gas force effective plane G E possible conical deformation of the plain bearing ( 4 ) is reliably avoided.

Vorzugsweise findet das erfindungsgemäße Pleuel bei V-Motoren Verwendung, insbesondere in einer V-Motorenfamilie.The connecting rod according to the invention is preferably used in V engines, especially in a V-engine family.

Claims (3)

1. Pleuel für eine Brennkraftmaschine, insbesondere V-Motor,
bei dem zu einer ein Pleuelauge (2) mittig durchsetzenden Gaskraft- Wirkebene (GE) ein Pleuel-Hauptlager (3) aussermittig gestaltet ist, wobei
das zweiteilig ausgebildete, verschraubbare Hauptlager (3) mit einem Gleitlager (4) ausgerüstet ist, das
eine zur Gaskraft-Wirkebene (GE) symmetrisch ausgebildete Gleitlager-Lauffläche (5) aufweist,
dadurch gekennzeichnet,
dass ein mit seiner bezogen auf die Lagerbreite (BL) mittigen Schraubenkraft-Wirkebene (SE) relativ zur Gaskraft-Wirkebene (GE) aussermittig versetzt angeordnetes Pleuel-Hauptlager (3) mit einem Gleitlager (4) ausgerüstet ist, das eine zur Gaskraft-Wirkebene (GE) symmetrisch ausgebildete Gleitlager-Lauffläche (5) aufweist. 1. connecting rod for an internal combustion engine, in particular V-engine,
in which a connecting rod main bearing ( 3 ) is designed eccentrically to a gas force effective plane (G E ) penetrating a connecting rod eye ( 2 ) in the center, wherein
the two-part screw-type main bearing ( 3 ) is equipped with a plain bearing ( 4 )
has a plain bearing tread ( 5 ) symmetrical to the gas force effective plane (G E ),
characterized by
that one with its in relation to the bearing width (B L ) central screw force effective plane (S E ) relative to the gas force effective plane (G E ) offset connecting rod main bearing ( 3 ) is equipped with a plain bearing ( 4 ), one for Gas force effective plane (G E ) has symmetrically designed slide bearing tread ( 5 ). 2. Pleuel nach Anspruch 1,
dadurch gekennzeichnet,
dass das Gleitlager (4) sich über die Lagerbreite (BL) des Pleuel- Hauptlagers (3) erstreckt, wobei
die symmetrisch wirksame Gleitlager-Lauffläche (5) mittels einer umfänglichen Ausnehmung (6) in einem von der Gaskraft-Wirkebene (GE) entfernten Endbereich (7) des Gleitlagers (4) erzielt ist.2. connecting rod according to claim 1,
characterized,
that the plain bearing ( 4 ) extends over the bearing width (B L ) of the connecting rod main bearing ( 3 ), wherein
the symmetrically effective slide bearing running surface ( 5 ) is achieved by means of a circumferential recess ( 6 ) in an end region ( 7 ) of the slide bearing ( 4 ) which is distant from the gas force effective plane (G E ). 3. Pleuel nach Anspruch 1 und 2,
dadurch gekennzeichnet,
dass das Gleitlager (4) ein Mehrschichtlager mit einem Stahlrücken (8) ist, der
sich über die Lagerbreite (BL) des Pleuel-Hauptlagers (3) erstreckt.3. connecting rod according to claim 1 and 2,
characterized,
that the plain bearing ( 4 ) is a multi-layer bearing with a steel back ( 8 ), the
extends over the bearing width (B L ) of the connecting rod main bearing ( 3 ).
DE10039022A 2000-08-10 2000-08-10 Connecting rods for an internal combustion engine, especially a V-engine Withdrawn DE10039022A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE10039022A DE10039022A1 (en) 2000-08-10 2000-08-10 Connecting rods for an internal combustion engine, especially a V-engine
EP01115989A EP1179663B1 (en) 2000-08-10 2001-06-30 Connecting rod for a V-type combustion engine
DE50109736T DE50109736D1 (en) 2000-08-10 2001-06-30 Connecting rod for an internal combustion engine, in particular V-engine
ES01115989T ES2260124T3 (en) 2000-08-10 2001-06-30 ROD FOR INTERNAL COMBUSTION MOTOR, ESPECIALLY A V-MOTOR.
AT01115989T ATE325945T1 (en) 2000-08-10 2001-06-30 CONNECTING ROD FOR AN INTERNAL COMBUSTION ENGINE, ESPECIALLY V ENGINE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10039022A DE10039022A1 (en) 2000-08-10 2000-08-10 Connecting rods for an internal combustion engine, especially a V-engine

Publications (1)

Publication Number Publication Date
DE10039022A1 true DE10039022A1 (en) 2002-02-21

Family

ID=7651953

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10039022A Withdrawn DE10039022A1 (en) 2000-08-10 2000-08-10 Connecting rods for an internal combustion engine, especially a V-engine
DE50109736T Expired - Lifetime DE50109736D1 (en) 2000-08-10 2001-06-30 Connecting rod for an internal combustion engine, in particular V-engine

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE50109736T Expired - Lifetime DE50109736D1 (en) 2000-08-10 2001-06-30 Connecting rod for an internal combustion engine, in particular V-engine

Country Status (4)

Country Link
EP (1) EP1179663B1 (en)
AT (1) ATE325945T1 (en)
DE (2) DE10039022A1 (en)
ES (1) ES2260124T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1359334A1 (en) * 2002-04-30 2003-11-05 Bayerische Motoren Werke Aktiengesellschaft Connecting rod for reciprocating piston machine,especially V-type engine
DE112012001137B4 (en) 2011-03-09 2022-07-14 Cummins Intellectual Property, Inc. Connecting rods with staggered attachment holes for an internal combustion engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8371263B2 (en) 2009-03-31 2013-02-12 Dresser, Inc. Connecting rod

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2344275A (en) * 1941-04-08 1944-03-14 Int Harvester Co Bearing
DE4025927A1 (en) * 1990-08-16 1992-02-20 Daimler Benz Ag Reciprocating piston engine series - has increased cylinder offset of all engines
DE19751640A1 (en) * 1997-11-21 1999-05-27 Bayerische Motoren Werke Ag Forged connecting rod consisting of carbon steel, with fracture separated bearing cap
DE19752753A1 (en) * 1997-11-28 1999-06-02 Bayerische Motoren Werke Ag Method for breaking a bearing cap in a connecting rod for reciprocating piston machines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE865686C (en) * 1941-08-05 1953-02-05 Daimler Benz Ag Storage for connecting rods of V-engines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2344275A (en) * 1941-04-08 1944-03-14 Int Harvester Co Bearing
DE4025927A1 (en) * 1990-08-16 1992-02-20 Daimler Benz Ag Reciprocating piston engine series - has increased cylinder offset of all engines
DE19751640A1 (en) * 1997-11-21 1999-05-27 Bayerische Motoren Werke Ag Forged connecting rod consisting of carbon steel, with fracture separated bearing cap
DE19752753A1 (en) * 1997-11-28 1999-06-02 Bayerische Motoren Werke Ag Method for breaking a bearing cap in a connecting rod for reciprocating piston machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1359334A1 (en) * 2002-04-30 2003-11-05 Bayerische Motoren Werke Aktiengesellschaft Connecting rod for reciprocating piston machine,especially V-type engine
DE10219277A1 (en) * 2002-04-30 2003-11-13 Bayerische Motoren Werke Ag Connecting rods for reciprocating machines, especially for V-engines
DE112012001137B4 (en) 2011-03-09 2022-07-14 Cummins Intellectual Property, Inc. Connecting rods with staggered attachment holes for an internal combustion engine

Also Published As

Publication number Publication date
EP1179663B1 (en) 2006-05-10
ES2260124T3 (en) 2006-11-01
EP1179663A3 (en) 2002-09-04
ATE325945T1 (en) 2006-06-15
DE50109736D1 (en) 2006-06-14
EP1179663A2 (en) 2002-02-13

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